Across
- 2. an animal or plant preserved in a rock
- 4. the act of creating something
- 8. relating to a period of time before history was first written
- 10. Darwin formulated a theory of evolution
Down
- 1. when a type of animal or plant changes over time
- 3. the scientific study of living things
- 5. the ability that living things change in a new environment
- 6. theory of biological evolution
- 7. Change or grow as they get older
- 9. one or more ideas that explain how or why something happened